Hello Community,
Please find the mathcad file in the attached it was developed in PTC9
1.In the following after the symbolic evaluation the units are not simplifying, for instance Ohms*Farads
should be seconds, and Farad * Voltage should be Columbs, but
2.After Q2 as assigned as the result after the integration, when I try to call on Q2 it cannot be found, can someone please explain?
Thanks
Prime often gets the labels ("Unit", "Variable", "-") wrong when using the symbolics.
You should turn on this option and let the worksheet recalc
Primes symbolics still does not know anything about units (its treats them as unknowns and so can't simplify Ohm*Farad to seconds) but at least it now gets the labels correct (you can see that the units in the symbolic results are now bold blue (which means they are correctly labeled as "Unit") ans so xou can evaluate the expressions numerically without errors.
But I wonder why you would use the symbolics at all and why you are first defining the derivative (I1) just to integrate it a moment later?
Prime 9 sheet attached
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